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D. 0. ADAMS. SMOKE CONSUMER.

No. 467,745. Patented Jan. 26, 1892.

NITED STATES PATENT OFFICE.

DAVID O. ADAMS, OF TORONTO, CANADA.

SMOKE-CONSUMER.

SPECIFICATION forming part of Letters Patent No. 467,745,dated January26, 1892.

Application tiled March 5, 1891. Serial No. 383.818. (No model.)

To @ZZ whom t may concern:

Be it known that I, DAVID CHARLES ADAMS, irolrwoiker, of the city ofToronto, in the county of York, in the Province of Ontario, haveinvented certain new and useful Improvements in Smoke-Consumers, ofwhich the following is a specification.

The object of the invention is to design a smokeconsumer applicable tofurnaces for manufacturing iron, and to locomotive, stationary,steamboat, smelting, and all other classes of furnaces; and it consistsin the peculiar construction, arrangement, and combinations of partshereinafter more particularly described and then denitely claimed.

Figure 1 is a sectional side view of any ordinary balling-furnaceprovided With my improved srnoke-consumer. Fig. 2 is a plan of the same.Fig. 3 is a cross-sectional elevation. Fig. 4. :is an enlarged detail ofthe bridge, showing the manner of introducing blasts of superheated airand superheated steam.

As before stated, my improved smoke-consumer is applicable to all kindsof furnaces; but for the purpose of this specification I show it appliedto a balling-furnace. The arrangement of the parts will of course differaccording to the size and style of the furnace; but an explanation ofits application to a balling-furnace Will be sufficient to enable anyone to understand the construction and operation of my improvedsmoke-consumer.

In the drawings, A represents a steam-pipe, which is supplied with steamfrom any suitable source. B is an air-pipe, Which is preferably suppliedwith air under pressure from the pump or fan C. These pipesAand B extenddown into the sand D, forming the bottom of the furnace. Both of thesepipes are carried below this bed to the bridge E, as indicated in thedrawings. A chamber F is formed in the bridge E, and is preferablysurrounded by a water-space G, which is supplied With flowing Water insuch a manner as to protect the said bridge. The chamber F may be openat its top, as indicated in the drawings, or a perforated top may beprovided. The steam-pipe A extends into the chamber F, and is extendedup to a point near the top of the said bridge, where it is carried backthrough the inner Wall of the bridge E, where it connects with a branchpipe with fan-shaped openings L. (See Fig. 4.)

The superheated air which enters the chamber F escapes into the furnaceimmediately above the bridge E, where it mixes with the smoke passingover the said bridge. It will be seen that as the incoming air risesvertically through the chamber F it will slightly raise the heatedproducts of combustion and keep them from close contact With the top ofthe bridge, and thus save the same from being burned. The steam, beinghighly heated by the intense heat of the sand through which the pipe Apasses, becomes decomposed, thus forming a mixture of oxygen andhydrogen gas, which is discharged through the fan; shaped openings L andforms a ame, which immediately ignites the smoke charged with the heatedair from the chamber F, producing perfect combustion, and as aconsequence the intense heat is secured with a minimum consumption offuel. By arranging the discharge of the air and decomposed steam in thisrelative position I produce the best effect, as the air keeps theproducts of combustion from the top of the bridge, and the decomposedsteam mingles with said products of combustion after they have crossedthe bridge, and thus the most intense heat is generated just where it iswanted. NVith the View of protecting the top of the furnace I introducean air-pipe J through it at an angle pointing toward the inner corner ofthe bridge E, and into this pipe I insert a small steam-jet K, suppliedwith steam from the pipe. This steam-jet K forms, with the air-pipe J,an injector to force into the point desired a mixture of steam and air,which acts as a blast to force the flame down toward the bed D, at whichpoint the most intense heat is required, and thereby carrying the damefrom the top of the furnace.

I do not wish to confine myself to the exact arrangement of the detailillustrated in the drawings, for, as I before stated, the details of thearrangement will be altered to suit the class of furnace to which mysmoke-consumer is applied.

What I claim as my invention is-` 1. A furnace having a bridge providedwith a longitudinal chamber open at the top, in

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combination with a hot-air pipe leading into said chamber, andsteam-pipes having openings from the side of the bridge intothelieating-chamber, substantially as described.

2. A furnace provided with a bridge di- Vded longitudinally by a chamberopen at the top, an air-pipe leading into said chamber, and aWater-passage around said chamber, substantially as described.

Toronto, February 16, 1891.

DAVID C. ADAMS. In presence 0f CHARLES C. BALDWIN, JOHN E. CAMERON.

